CaratHunter
Plans
Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 7558684453

Certificate GIA 7558684453

Diamond specifications and retailer prices

From $5,922 AUD
HK$32,500 HKD
As of November 1, 2026
Save $7,679 AUD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,601 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7558684453. Listed at 23 retailers as of October 30, 2026, with prices from $5,922 to $13,601, a $7,679 spread on the same certified stone. NZ Jewellers lists it at $13,601. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43°
Pavilion angle36.2°
OriginNatural
Grading LabGIA
CertificateGIA 7558684453
Dimensions8.45 × 6.30 × 4.16 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.45 mm6.30 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558684453
Side View
Table 64.0%Crown 43°Girdle: THK-VTKPavilion 36.2°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $13,601 AUD|Low: $5,922 AUD|High: $13,601 AUD|Avg: $7,872 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 7$5,922 AUD
Retailer 21$6,016 AUD
Retailer 16$6,107 AUD
Retailer 6$6,240 AUD
Retailer 5$6,379 AUD
Retailer 19$6,428 AUD
Retailer 3$6,604 AUD
Retailer 20$7,154 AUD
Retailer 2$7,440 AUD
Retailer 8$7,524 AUD
Retailer 11$7,532 AUD
Retailer 15$7,704 AUD
Retailer 9$8,015 AUD
Retailer 12$8,243 AUD
Retailer 10$8,254 AUD
Retailer 13$8,429 AUD
Retailer 14$8,527 AUD
Retailer 17$9,191 AUD
Retailer 4$9,706 AUD
Retailer 18$12,576 AUD
NZ Jewellers$13,601 AUD

30 data points across 21 retailers

23 retailers$5,922 AUD to $13,601 AUD

A
Cheapest Retailer
-
$5,922 AUD
HK$32,500 HKD
A
Retailer 2
-
$6,016 AUD
$4,226 USD
View
A
Retailer 3
-
$6,107 AUD
$4,290 USD
View
A
Retailer 4
-
$6,240 AUD
$4,383 USD
View
A
Retailer 5
-
$6,379 AUD
$4,481 USD
View
A
Retailer 6
-
$6,428 AUD
$4,515 USD
View
B+
Retailer 7
-
$6,604 AUD
$4,639 USD
View
Final sale: no returns
B+
Retailer 8
-
$7,154 AUD
$5,025 USD
View
Retailer 9
-
$7,367 AUD
$5,175 USD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
$7,440 AUD
£4,115 GBP
View
B+
Retailer 11
-
$7,524 AUD
$5,285 USD
View
B+
Retailer 12
-
$7,532 AUD
$5,291 USD
View
B+
Retailer 13
-
$7,704 AUD
£4,261 GBP
View
B+
Retailer 14
-
$8,015 AUD
$5,630 USD
View
B+
Retailer 15
-
$8,243 AUD
$5,790 USD
View
B+
Retailer 16
-
$8,243 AUD
View
B+
Retailer 17
-
$8,254 AUD
$5,798 USD
View
B+
Retailer 18
-
$8,429 AUD
€5,639 EUR
View
B+
Retailer 19
-
$8,527 AUD
$5,990 USD
View
B+
Retailer 20
-
$9,191 AUD
$6,456 USD
View
B
Retailer 21
-
$9,706 AUD
ZAR 110,147 ZAR
View
B
Retailer 22
-
$12,576 AUD
£6,956 GBP
View
Most Expensive
B
NZ Jewellers
2a710eeb-81af-4217-ab6c-6db5bde968a2 · Oct 30
$13,601 AUD
$9,554 USD
View
22 more retailers have this diamond
Prices start from $5,922 AUDSave up to $7,679 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Oval
$5,922 AUD